Unitree B2-W Wheeled Quadruped Robot

Industrial sites rarely stop for the weather. Inspections continue through frost, rain and summer heat, and patrols still cover yards, stairwells and embankments when conditions are poor. The Unitree B2-W Wheeled Quadruped Robot is designed for that kind of working day. It is a four-legged machine that runs on driven wheels while the surface allows and lifts those wheels into steps when it does not, so it covers distance quickly and still reaches ground that a conventional rover cannot. It works as a vehicle and as a walking robot in one sealed chassis.

Robots Europa, based in Dublin, sells the Unitree B2-W and supplies it to research institutes, integrators and industrial operators across the European Union and the DACH region. Robots Europa prepares each quotation, arranges delivery and provides support after the robot is in service, so buyers have one European contact from the first enquiry to deployment.

Background

Unitree Robotics and the B2 family

Unitree Robotics is one of the best-known makers of legged robots. Its range runs from compact quadrupeds for teaching and development to heavier platforms built for industrial duty. The B2 family belongs to the heavier end of that range. The sources name three versions: the B2 itself, the wheeled B2-W, and the B2-W supplied with a navigation kit. This page covers the B2-W. Every figure given here refers to that version and should not be read across to its siblings.

Legs and wheels in a single platform

The idea behind the B2-W is simple to state but demanding to engineer. A wheel at the end of each leg turns the robot into a fast rolling platform on flat ground. The legs keep their full range of motion, so the robot can still climb stairs, cross obstacles and handle steep slopes. The manufacturer describes the B2-W as a wheeled quadruped designed for fast movement, including in demanding environments. Its perception system combines 3D LiDAR with depth and optical cameras. Computing is split between one processor that runs the platform and a second that is reserved for the user's own development work.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.

The manufacturer has not published the payload mounting interfaces, the charging time, the noise level, the service life or the camera resolution; Robots Europa confirms these at quotation.

How does the B2-W cope with harsh conditions?

For most outdoor programmes, the first question is whether the robot will still be working when the weather turns. The B2-W carries an IP67 ingress protection rating and an operating temperature range of -20 ℃ to 55 ℃. That range covers a frozen depot in the Alps and a sun-baked solar farm in southern Europe alike. Operators therefore do not need to plan patrols around forecasts, and they do not need to fit separate weather housings to the robot.

Terrain is the second constraint. The B2-W climbs stairs continuously on steps of 20 to 25 cm and handles slopes of more than 45°. Its 225 mm wheels deliver up to 40 N.m of torque and reach a maximum wheel speed of 50 rad/s. The result is a machine that moves quickly across a car park and then climbs to a mezzanine without a lift. When the robot is not working, it folds into a lying-prone posture of ≈ 950 mm × 550 mm × 450 mm, which helps with transport and storage between deployments.

How far can the B2-W travel on one battery?

Range determines how much ground a single robot can cover in a shift. The B2-W uses a battery of more than 2 kWh at 58 V. Without a load, it reaches a mileage of about 30 km. Carrying 40 kg, it covers up to 25 km. Top speed is 15 km/h. These figures support long perimeter routes and repeated inspection loops without a return to base, and the robot keeps a useful payload on board while it does so.

When the battery does run down, the design limits the downtime. The battery is removable and built for quick replacement, so a second pack keeps the robot in service while the first one charges. Where no operator is present, an autonomous charging solution can be integrated according to the site's needs. Load capacity follows the same practical logic. The B2-W carries more than 40 kg while walking and supports a static load of 120 kg when standing, which leaves room for sensor masts, manipulators or inspection instruments.

Who is the Unitree B2-W Wheeled Quadruped Robot for?

The B2-W suits organisations that need a legged robot to cover real distances outdoors. Industrial operators in energy, utilities, chemicals and logistics can use it for routine inspection rounds, where the wheels shorten transit times and the weather sealing keeps it running throughout the year. Security and facility managers will find it suited to patrols on large mixed sites, where routes pass from open tarmac into stairwells and service areas.

Universities and research institutes are a second audience. The Intel Core i7 reserved for user development keeps experimental code separate from the platform's own functions. The optional configuration with Jetson Orin NX, for up to three devices, adds capacity for perception and learning workloads. This makes the B2-W a credible testbed for work on hybrid locomotion, autonomy and field robotics. System integrators can build bespoke solutions on the platform, using its load capacity and its WiFi 6 and Bluetooth 5.2 connectivity.

Buyers who want the robot supplied with navigation equipment from the outset should look at the Unitree B2-W Industry Grade Quadruped Robot Dog with Wheels Basic B2-W Kit with Battery, Navigation Kit. Robots Europa confirms the exact contents of that package at quotation. The standard B2-W suits teams that intend to integrate their own navigation stack.

What is the Unitree B2-W Wheeled Quadruped Robot used for?

1. Industrial inspection: routine rounds through plants, substations and pipelines, carrying cameras and LiDAR through yards and up stairways.
2. Site security patrols: fast, repeatable perimeter routes on large premises, in all weathers and at any hour.
3. Research in hybrid locomotion: a platform for studying how wheeled and legged movement can be combined and controlled.
4. Autonomy and perception development: dedicated user computing and an onboard sensor suite for mapping, localisation and navigation work.
5. Payload transport: carrying tools, instruments or samples across rough ground where carts and trolleys cannot follow.
6. Emergency and public-safety trials: reconnaissance in degraded environments, assessed and validated by specialist teams.

Pricing and Availability

Robots Europa supplies the Unitree B2-W on a quotation basis, because the configuration, computing options, battery arrangements and integration needs differ from one project to the next. Delivery, customs and support are arranged together with the quotation. Specify the configuration you need, including any optional Jetson Orin NX computing or an autonomous charging solution, and Robots Europa will prepare an offer for your site. You can request a quotation for the Unitree B2-W Wheeled Quadruped Robot, available on this page.

Frequently Asked Questions

Can the Unitree B2-W operate in rain and snow?

Yes. The B2-W carries an IP67 ingress protection rating and operates between -20 ℃ and 55 ℃, so it is suitable for outdoor work throughout the year.

How fast is the B2-W?

The manufacturer gives a speed of 15 km/h for the B2-W.

Can the B2-W climb stairs despite its wheels?

Yes. It climbs stairs continuously on steps of 20 to 25 cm and handles slopes of more than 45°.

How much can the B2-W carry?

It carries more than 40 kg while walking and supports a static load of 120 kg when standing. With a 40 kg load, it covers up to 25 km.

Is the battery replaceable?

Yes. The battery is removable and designed for quick replacement. An autonomous charging solution can be integrated where the application requires one.

What computing does the B2-W offer for development?

As standard, an Intel Core i5 handles the platform functions and an Intel Core i7 is reserved for user development. An optional configuration adds an Intel Core i7 and Jetson Orin NX, for up to three devices.

Where can I buy the Unitree B2-W Wheeled Quadruped Robot and what does it cost?

Robots Europa supplies the B2-W across the EU and the DACH region. The cost depends on the configuration and services you choose, so Robots Europa provides it in a personal quotation, which you can request on this page.

Summary

Field robotics succeeds or fails on the days when conditions are poor, and the Unitree B2-W is built for exactly those days. Its IP67 sealing and wide temperature range keep it outdoors through the seasons. The wheels at its feet bring speed and range, and its legs still carry it up stairs and steep slopes. A removable battery, a substantial load capacity and separate user computing make it a practical tool for operators and a serious platform for researchers. For organisations in Europe planning inspection, security or research programmes around a hybrid wheeled quadruped, this page is the starting point.